package com.liao.cloudstorage.login;

import com.liao.cloudstorage.entity.User;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * @author liao
 */
@Component
public class MyInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        HttpSession session = request.getSession();
        User user = (User) session.getAttribute("user");
        if(user!=null){
            return true;
        }
        else{
            response.sendRedirect(request.getContextPath()+"/login");
            return false;
        }
    }

}
